<div dir="ltr"><div class="gmail_default" style="font-family:'trebuchet ms',sans-serif">Thanks Sumit.</div><div class="gmail_default" style="font-family:'trebuchet ms',sans-serif"> </div><div class="gmail_default" style="font-family:'trebuchet ms',sans-serif">From the logs there is nothing unusual around the time of core dump. I found this one line odd though.</div><div class="gmail_default" style="font-family:'trebuchet ms',sans-serif"> </div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div class="gmail_default" style="">Jan 26 03:15:58 <a href="http://ipa.example.net">ipa.example.net</a> krb5kdc[4471](Error): worker 4473 exited with status 134</div></blockquote><div class="gmail_default" style=""> </div><div class="gmail_default" style="">Let me try to get the full BT. </div></div><div class="gmail_extra"> <div class="gmail_quote">On 28 January 2016 at 13:54, Sumit Bose <<a href="mailto:sbose@redhat.com" target="_blank">sbose@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Thu, Jan 28, 2016 at 10:25:53AM +0530, Prashant Bapat wrote: > Hi, > > We have a FreeIPA 4.1.4 setup on F21 servers. There is 1 master and 7 > replicas in different regions. Earlier there was only 1 replica. Since I > added new replicas, on the master node, once in a while the kerberos > process dumps core and everything stops working - authentication, > replication etc. If we restart everything using "ipactl restart" things are > back to normal. > > Attached is the output from journalctl for kerberos. > > Has anyone come across this ? Are there any pointers to troubleshooting > this ? This might be fixed recently by a patch from Simo (2144b1eeb789639b8a3df287b580aeb6196188a8). But to help to better identify the issue the content of the kdc logs around the time of the crash might be useful. Additionally a full backtrace which you can get by calling coredumpclt gdb 4475 and then bt full bye, Sumit > > Any help is appreciated. > > Thanks. > --Prashant > Jan 26 03:15:59 <a href="http://ipa.example.net" rel="noreferrer" target="_blank">ipa.example.net</a> systemd-coredump[5000]: Process 4475 (krb5kdc) of user 0 dumped core. > > Stack trace of thread 4475: > #0 0x00007f99de8c18d7 raise (libc.so.6) > #1 0x00007f99de8c353a abort (libc.so.6) > #2 0x00007f99de8ba47d __assert_fail_base (libc.so.6) > #3 0x00007f99de8ba532 __assert_fail (libc.so.6) > #4 0x00007f99d783a78f ldap_get_values_len (libldap_r-2.4.so.2) > #5 0x00007f99d7c8173e ipadb_ldap_attr_to_int (ipadb.so) > #6 0x00007f99d7c83f9c ipadb_parse_ldap_entry (ipadb.so) > #7 0x00007f99d7c849ab ipadb_get_principal (ipadb.so) > #8 0x00007f99e0433b14 krb5_db_get_principal (libkdb5.so.7) > #9 0x000055768457c230 process_tgs_req (krb5kdc) > #10 0x0000557684579fe3 dispatch (krb5kdc) > #11 0x000055768458d8a0 process_packet (krb5kdc) > #12 0x00007f99dec4cc78 verto_fire (libverto.so.1) > #13 0x00007f99d6fb72a3 epoll_event_loop_once (libtevent.so.0) > #14 0x00007f99d6fb5787 std_event_loop_once (libtevent.so.0) > #15 0x00007f99d6fb1fed _tevent_loop_once (libtevent.so.0) > #16 0x00007f99dec4c3f7 verto_run (libverto.so.1) > #17 0x00005576845795ab main (krb5kdc) > #18 0x00007f99de8acfe0 __libc_start_main (libc.so.6) > #19 0x00005576845798f0 _start (krb5kdc) > > Jan 26 03:15:59 <a href="http://ipa.example.net" rel="noreferrer" target="_blank">ipa.example.net</a> systemd-coredump[4999]: Process 4473 (krb5kdc) of user 0 dumped core. > > Stack trace of thread 4473: > #0 0x00007f99de8c18d7 raise (libc.so.6) > #1 0x00007f99de8c353a abort (libc.so.6) > #2 0x00007f99de8ba47d __assert_fail_base (libc.so.6) > #3 0x00007f99de8ba532 __assert_fail (libc.so.6) > #4 0x00007f99d783a78f ldap_get_values_len (libldap_r-2.4.so.2) > #5 0x00007f99d7c8173e ipadb_ldap_attr_to_int (ipadb.so) > #6 0x00007f99d7c83f9c ipadb_parse_ldap_entry (ipadb.so) > #7 0x00007f99d7c849ab ipadb_get_principal (ipadb.so) > #8 0x00007f99e0433b14 krb5_db_get_principal (libkdb5.so.7) > #9 0x000055768457c230 process_tgs_req (krb5kdc) > #10 0x0000557684579fe3 dispatch (krb5kdc) > #11 0x000055768458d8a0 process_packet (krb5kdc) > #12 0x00007f99dec4cc78 verto_fire (libverto.so.1) > #13 0x00007f99d6fb72a3 epoll_event_loop_once (libtevent.so.0) > #14 0x00007f99d6fb5787 std_event_loop_once (libtevent.so.0) > #15 0x00007f99d6fb1fed _tevent_loop_once (libtevent.so.0) > #16 0x00007f99dec4c3f7 verto_run (libverto.so.1) > #17 0x00005576845795ab main (krb5kdc) > #18 0x00007f99de8acfe0 __libc_start_main (libc.so.6) > #19 0x00005576845798f0 _start (krb5kdc) > -- > Manage your subscription for the Freeipa-users mailing list: > <a href="https://www.redhat.com/mailman/listinfo/freeipa-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/freeipa-users</a> > Go to <a href="http://freeipa.org" rel="noreferrer" target="_blank">http://freeipa.org</a> for more info on the project -- Manage your subscription for the Freeipa-users mailing list: <a href="https://www.redhat.com/mailman/listinfo/freeipa-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/freeipa-users</a> Go to <a href="http://freeipa.org" rel="noreferrer" target="_blank">http://freeipa.org</a> for more info on the project </blockquote></div> </div>